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# Copyright (c) 2008 - OpenSLX GmbH
#
# This program is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your suggestions, praise, or complaints to feedback@openslx.org
#
# General information about OpenSLX can be found at http://openslx.org/
# -----------------------------------------------------------------------------
# BootEnvironment::Preboot.pm
# - provides general preboot implementation of the BootEnvironment API.
# -----------------------------------------------------------------------------
package OpenSLX::BootEnvironment::PBS;
use strict;
use warnings;
use base qw(OpenSLX::BootEnvironment::Base);
use OpenSLX::MakeInitRamFS::Engine::PBS;
use Clone qw(clone);
use File::Basename;
use File::Path;
use Data::Dumper;
use JSON;
use HTTP::Request::Common;
use LWP::UserAgent;
use OpenSLX::Basics;
use OpenSLX::ConfigDB qw(:support);
use OpenSLX::Utils;
sub initialize
{
my $self = shift;
my $params = shift;
return if !$self->SUPER::initialize($params);
$self->{'original-path'} = "$openslxConfig{'public-path'}/pbs";
$self->{'target-path'} = "$openslxConfig{'public-path'}/pbs.new";
$self->{'requires-default-client-config'} = 0;
# we do not need a default.tgz since there's always an explicit client
if (!$self->{'dry-run'}) {
mkpath([$self->{'original-path'}]);
rmtree($self->{'target-path'});
mkpath("$self->{'target-path'}/client-config");
}
return 1;
}
sub writeBootloaderMenuFor
{
my $self = shift;
my $client = shift;
my $externalClientID = shift;
my $systemInfos = shift || [];
my $prebootSystemInfo
= clone($self->_pickSystemWithNewestKernel($systemInfos));
vlog(
0,
_tr(
"\nsend preboot information for client '%s' to pbs (%s)\n".
" (image templates provided based of %s) ...",
$client->{name}, $client->{attrs}->{preboot_server}, $prebootSystemInfo->{name}
)
);
$self->_createPrebootStuff($client, $prebootSystemInfo);
my $kernel = "$self->{'target-path'}/imagebase/vmlinuz";
my $initramfs = "$self->{'target-path'}/imagebase/initramfs";
my $kernel_md5 = qx/md5sum $kernel | awk '{print \$1}'/;
my $initramfs_md5 = qx/md5sum $initramfs | awk '{print \$1}'/;
my $data_json = to_json({
'slxinfo' => qx/slxversion/,
'kernel' => basename($prebootSystemInfo->{'kernel-file'}),
'kernel_md5' => trim($kernel_md5),
'initramfs_md5' => trim($initramfs_md5),
'systems' => $systemInfos
});
my $ua = LWP::UserAgent->new;
my $res = $ua->request(POST 'http://pbs.experimental.openslx.org/backend/system/sync', [data => $data_json]);
if ($res->is_success) {
my $resData = from_json($res->content);
if ($resData->{'getKernel'} eq 'fresh') {
$res = $ua->request(POST 'http://pbs.experimental.openslx.org/backend/system/addkernel',
['kernel' => basename($prebootSystemInfo->{'kernel-file'}),
'kernelFile' => ["$self->{'target-path'}/imagebase/vmlinuz"],
'initramfsFile' => ["$self->{'target-path'}/imagebase/initramfs"],
],
'Content_Type' => 'form-data'
);
print Dumper($res->content);
} else {
if ($resData->{'getKernel'} eq 'update') {
$res = $ua->request(POST 'http://pbs.experimental.openslx.org/backend/system/updatekernel',
['kernel' => basename($prebootSystemInfo->{'kernel-file'}),
'kernelFile' => ["$self->{'target-path'}/imagebase/vmlinuz"],
],
'Content_Type' => 'form-data'
);
print Dumper($res->content);
} else {
# do nothing
}
if ($resData->{'getInitramfs'} eq 'update') {
$res = $ua->request(POST 'http://pbs.experimental.openslx.org/backend/system/updateinitramfs',
['kernel' => basename($prebootSystemInfo->{'kernel-file'}),
'initramfsFile' => ["$self->{'target-path'}/imagebase/initramfs"],
],
'Content_Type' => 'form-data'
);
print Dumper($res->content);
} else {
# do nothing
}
}
} else {
vlog(0, 'communication with pbs failed.. please check and rerun..');
}
return 1;
}
sub _createPrebootStuff
{
my $self = shift;
my $client = shift;
my $info = shift;
my $prebootClass = instantiateClass(
"OpenSLX::BootEnvironment::Preboot::Base"
);
my $imagebase = "$self->{'target-path'}/imagebase";
$prebootClass->initialize($self);
$client->{attrs}->{boot_uri} = $client->{attrs}->{preboot_server};
mkpath("$imagebase");
$self->_makePBSInitRamFS($info, "$imagebase/initramfs", $client);
my $kernelFile = $info->{'kernel-file'};
my $kernelName = basename($kernelFile);
slxsystem(qq{cp -p "$kernelFile" "$imagebase/vmlinuz"})
unless $self->{'dry-run'};
return 1;
}
sub _pickSystemWithNewestKernel
{
my $self = shift;
my $systemInfos = shift;
my $systemWithNewestKernel;
my $newestKernelFileSortKey = '';
foreach my $system (@$systemInfos) {
next unless $system->{'kernel-file'} =~ m{
(?:vmlinuz|x86)-(\d+)\.(\d+)\.(\d+)(?:\.(\d+))?-(\d+(?:\.\d+)?)
}x;
my $sortKey
= sprintf("%02d.%02d.%02d.%02d-%2.1f", $1, $2, $3, $4||0, $5);
if ($newestKernelFileSortKey lt $sortKey) {
$systemWithNewestKernel = $system;
$newestKernelFileSortKey = $sortKey;
}
}
if (!defined $systemWithNewestKernel) {
die _tr("unable to pick a system to be used for preboot!");
}
return $systemWithNewestKernel;
}
sub _makePBSInitRamFS
{
my $self = shift;
my $info = shift;
my $initramfs = shift;
my $client = shift;
my $vendorOS = $info->{'vendor-os'};
my $kernelFile = basename(followLink($info->{'kernel-file'}));
my $attrs = clone($info->{attrs} || {});
my $bootURI = $client->{attrs}->{boot_uri};
if (!$bootURI) {
die _tr("client $client->{name} needs an URI in attribute 'boot_uri' to be used for preboot!");
}
chomp(my $slxVersion = qx{slxversion});
my $params = {
'attrs' => $attrs,
'export-name' => undef,
'export-uri' => undef,
'initramfs' => $initramfs,
'kernel-params'
=> [ split ' ', ($info->{attrs}->{kernel_params} || '') ],
'kernel-version' => $kernelFile =~ m[-(.+)$] ? $1 : '',
'plugins' => '',
'root-path'
=> "$openslxConfig{'private-path'}/stage1/$vendorOS->{name}",
'slx-version' => $slxVersion,
'system-name' => $info->{name},
'preboot-id' => $client->{name},
'boot-uri' => $bootURI,
};
# TODO: make debug-level an explicit attribute, it's used in many places!
my $kernelParams = $info->{attrs}->{kernel_params} || '';
if ($kernelParams =~ m{debug(?:=(\d+))?}) {
my $debugLevel = defined $1 ? $1 : '1';
$params->{'debug-level'} = $debugLevel;
}
my $makeInitRamFSEngine
= OpenSLX::MakeInitRamFS::Engine::PBS->new($params);
$makeInitRamFSEngine->execute($self->{'dry-run'});
# copy back kernel-params, as they might have been changed (by plugins)
$info->{attrs}->{kernel_params}
= join ' ', $makeInitRamFSEngine->kernelParams();
return;
}
1;
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